WO2020004913A1 - Dispositif d'affichage - Google Patents

Dispositif d'affichage Download PDF

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Publication number
WO2020004913A1
WO2020004913A1 PCT/KR2019/007676 KR2019007676W WO2020004913A1 WO 2020004913 A1 WO2020004913 A1 WO 2020004913A1 KR 2019007676 W KR2019007676 W KR 2019007676W WO 2020004913 A1 WO2020004913 A1 WO 2020004913A1
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WO
WIPO (PCT)
Prior art keywords
support
sheet
protrusion
support protrusion
display panel
Prior art date
Application number
PCT/KR2019/007676
Other languages
English (en)
Korean (ko)
Inventor
김연호
김대진
이형석
정현준
채현중
Original Assignee
삼성전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to US17/255,583 priority Critical patent/US11327220B2/en
Publication of WO2020004913A1 publication Critical patent/WO2020004913A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133325—Assembling processes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133328—Segmented frames
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0095—Light guides as housings, housing portions, shelves, doors, tiles, windows, or the like

Definitions

  • the present invention relates to a display device having a support protrusion for supporting an optical sheet.
  • the display device is a device that displays a screen by receiving an image signal, and includes a television, a monitor, and the like.
  • Such display devices support a display panel for displaying a screen, a backlight for supplying light to the display panel, optical sheets disposed between the display panel and the backlight to improve the specification of light supplied to the display panel, and optical sheets. It comprises a middle mold.
  • the optical sheets include support slots provided thereon, and the middle mold includes support protrusions installed through the support slots so that the support protrusions of the middle mold are installed in the support slots of the optical sheets. Supported by the mold.
  • One aspect of the present invention is to provide a display device having a support protrusion capable of supporting the optical sheet more stably.
  • the display apparatus includes a display panel, a backlight disposed at a rear side of the display panel, an optical sheet disposed between the display panel and the backlight, and a middle mold supporting the optical sheet.
  • the optical sheet includes support slots extending from side to side, wherein the middle mold includes support protrusions for supporting the optical sheet through the support slots, and the support protrusion protrudes from the middle mold and moves from side to side.
  • the side portion has a smaller upper and lower width than the support slot.
  • the locking portion extends downward from the front end of the sheet support portion.
  • the support protrusion includes a protrusion protruding upward from the center of the upper surface of the seat support portion, the protrusion is located on the rear side than the locking portion, the portion in which the protrusion is formed in the support protrusion than the support slot It has a small top and bottom width.
  • the support protrusion may include a pair of passages extending downward from both sides of the front end of the sheet support, and both sides of the front end of the support protrusion provided with the pair of passages may have a smaller upper and lower width than the support slot.
  • the engaging portion extends upward from the front end of the sheet support.
  • the support protrusion includes a pair of passages extending upwardly from both front ends of the sheet support portion, and both sides of the front end of the support protrusion provided with the pair of pass portions are smaller than the upper and lower widths of the support slots.
  • the engaging portion extends upward and downward from the front end center portion of the sheet support portion, respectively.
  • the support protrusion includes two pairs of passages extending upwardly and downwardly from both front ends of the sheet support portion, and both front ends of the support protrusions having the two pairs of pass portions provided therein. It has a small top and bottom width.
  • the optical sheet includes at least one of a diffuser sheet for diffusing light transmitted from the backlight, a dual brightness enhancement film (DBEF) sheet, and a quantum dot sheet for improving color reproducibility.
  • DBEF dual brightness enhancement film
  • the optical sheet may further include a plurality of sheet extensions extending from an upper end thereof and spaced apart from each other to the left and right, and the support slot may be provided at least one of the plurality of sheet extensions.
  • the apparatus may further include a front case, and the front case may include a panel seating portion in which a rear outer side of the display panel is seated, and a portion of the panel seating portion is opened and a front end of the support protrusion is accommodated. .
  • the front case includes a pressing portion for pressing the optical sheet to the rear side from the inner end of the panel seating portion to the rear side.
  • a display apparatus includes a display panel, a backlight disposed at a rear side of the display panel, an optical sheet disposed between the display panel and the backlight, and a middle mold supporting the optical sheet.
  • the optical sheet includes a support slot extending from side to side
  • the middle mold includes a support protrusion on which the optical sheet is caught, and a front center portion of the support protrusion has a larger upper and lower width than the support slot. Both sides of the front end of the support protrusion has a vertical width smaller than the support slot.
  • the support protrusion applied to the display device according to the present invention has the upper and lower widths of the front center portion larger than the supporting slots, and the front and both sides have the upper and lower widths smaller than the supporting slots. It is possible to prevent the optical sheet provided on the support protrusion from being detached from the support protrusion.
  • FIG. 1 is a perspective view of a display device according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of a display unit according to an embodiment of the present invention.
  • FIG 3 is a top cross-sectional view of a display unit according to an embodiment of the present invention.
  • Figure 4 is an exploded perspective view showing the installation of the optical sheet according to an embodiment of the present invention.
  • FIG. 5 is an enlarged perspective view illustrating a support slot provided on a support protrusion and an optical sheet according to an embodiment of the present invention.
  • FIG. 6 is a bottom perspective view of the support protrusion according to the embodiment of the present invention.
  • FIG. 7 is a cross-sectional view of the support protrusion and the optical sheet according to another embodiment of the present invention.
  • FIG. 8 is a bottom perspective view of a support protrusion according to another embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of the support protrusion and the optical sheet according to another embodiment of the present invention.
  • FIG. 10 is a bottom perspective view of a support protrusion according to another embodiment of the present invention.
  • the display apparatus 1 includes a display unit 10 on which a screen is displayed, and a stand 20 supporting the display unit 10.
  • the display unit 10 includes a display panel 11 on which a screen is displayed, and a backlight disposed at a rear side of the display panel 11 to supply light to the display panel 11.
  • the display panel 11 includes a pair of glass substrates 11a and 11b in a rectangular flat plate shape and a liquid crystal layer 11c disposed between the two glass substrates 11a and 11b.
  • the backlight 12 includes a light guide plate 12a formed in a rectangular plate shape, a pair of light sources 12b disposed opposite to both side surfaces of the light guide plate 12a and generating light, and disposed on a rear surface of the light guide plate 12a.
  • the reflective sheet 12c is included.
  • the pair of light sources 12b are spaced up and down on one side of the printed circuit board that extends up and down to correspond to both side surfaces of the light guide plate 12a, and one side of the printed circuit board opposite to the side surface of the light guide plate 12a. Each of the plurality of light emitting diodes to generate.
  • the reflective sheet 12c is formed of a white material to reflect light incident on the front surface through the light guide plate 12a back into the light guide plate 12a.
  • the optical sheets 13A, 13B, 13C can be bent because they are formed to be thin and have flexibility.
  • These optical sheets 13A, 13B, and 13C have a diffuser sheet 13A for receiving and diffusing light emitted from the light guide plate 12a to the front side, and a divider which is disposed at the front side of the diffuser sheet 13A and is a high brightness prism sheet.
  • Dual Brightness Enhancement Film (DBEF) sheet 13B and quantum dot sheet 13C for improving color reproducibility are included.
  • the display unit 10 includes a front case 14 forming a front outer side and a side of the display unit 10, a bottom chassis 16 supporting the backlight 12, a backlight 12 and an optical sheet 13A. And a middle mold 15 forming a space in which 13B and 13C are accommodated.
  • the display unit 10 is installed at the rear of the bottom chassis 16 and controls various printed circuit boards for controlling the operation of the display unit 10 and the bottom of the front case 14. And a rear case covering the rear of the chassis 16 and the printed circuit boards.
  • the printed circuit board includes a power supply board for supplying power to the display unit 10, a panel driver board for driving the display panel 11, a timing control board for transmitting an image signal to the display panel 11, and an image and sound.
  • a signal processing substrate for processing a signal may be included.
  • the front case 14 is disposed to surround the top, bottom, left, and right sides of the display panel 11 to form a bezel of the display unit 10, and extends inwardly from the case portion 14a to the display panel.
  • the rear outer side of the display panel 11 is attached to the front of the panel mounting portion 14b through an adhesive means such as a double-sided tape.
  • the bottom chassis 16 is formed in a rectangular plate shape and has a rear portion 16a for supporting the light guide plate 12a and four sides extending from the four ends of the rear portion 16a to the front side and joined to the middle mold 15. 16b).
  • the bottom chassis 16 is preferably formed of a metal material such as aluminum in consideration of heat dissipation.
  • the middle mold 15 is formed in a rectangular ring shape and has a frame portion 15a coupled to the inside of the case portion 14a of the front case 14, and a rib portion 15b protruding inward from the inner surface from the frame portion 15a. ) And a bottom support part 15c which extends from the inner end of the rib part 15b to the rear side and is supported on the rear front face of the bottom chassis 16.
  • the space between the rear portion 16a and the bottom support portion 15c of the bottom chassis 16 forms a space in which the backlight 12 is installed, and the space between the frame portion 15a and the bottom support portion 15c is a bottom chassis.
  • the spaces 16b of 16 are joined.
  • the middle mold 15 supports the optical sheets 13A, 13B and 13C so that the optical sheets 13A, 13B and 13C are disposed between the display panel 11 and the backlight 12.
  • the optical sheets 13A, 13B, and 13C each include a plurality of support slots 13d extending from side to side, and the middle mold 15 is optically connected through the support slots 13d.
  • a plurality of support protrusions 15d for supporting the sheets 13A, 13B, and 13C are included.
  • the plurality of support slots 13d are provided to be spaced apart from the left and right by the optical sheets 13A, 13B, and 13C, and the plurality of support protrusions 15d are positioned at the positions corresponding to the support slots 13d. It is arranged to be spaced from side to side.
  • the optical sheets 13A, 13B, 13C each include a plurality of sheet extensions 13e in which support slots 13d are provided, respectively.
  • the sheet extensions 13e extend upward from the top of the optical sheets 13A, 13B, and 13C and are spaced apart from each other from side to side. At least one support slot 13d is provided in each seat extension 13e.
  • each of the optical sheets 13A, 13B, and 13C includes three sheet extensions 13e, and each sheet extension portion 13e is provided with two support slots 13d spaced apart from each other. .
  • the support slot 13d is provided in the sheet extension part 13e, but is not limited thereto. That is, it is also possible to provide the supporting slots 13d at the upper ends of the optical sheets 13A, 13B, and 13C without forming the sheet extension 13e.
  • the support protrusion 15d protrudes forward from the rib portion 15b of the middle mold 15 as shown in FIGS. 5 and 6, and the sheet support portion 15d-1 on which the optical sheets 13A, 13B, and 13C are supported. ), The engaging portion 15d-2 provided at the front center portion of the sheet support portion 15d-1, the two passing portions 15d-3 provided at both sides of the front end portion of the sheet support portion 15d-1, and the sheet And a protrusion 15d-4 protruding upward from the top center portion of the support 15d-1.
  • the sheet support part 15d-1 extends in the front-rear direction and is inserted inside the support slot 13d provided in the optical sheets 13A, 13B, and 13C to support the optical sheets 13A, 13B, and 13C.
  • the sheet support 15d-1 extends to the left and right to have a predetermined width or more, but has a slightly smaller left and right width than the support slot 13d.
  • the sheet support part 15d-1 has a vertical width smaller than that of the support slot 13d.
  • the locking portion 15d-2 extends downward from the front center portion of the sheet support portion 15d-1.
  • the engaging portion 15d-2 is caught in the vicinity of the supporting slot 13d of the optical sheets 13A, 13B, and 13C to prevent the optical sheets 13A, 13B, and 13C from being separated from the sheet supporting portion 15d-1.
  • the front end portion of the support protrusion 15d has a vertical width larger than the support slot 13d by the locking portion 15d-2.
  • the passage part 15d-3 extends downward from both front ends of the sheet support part 15d-1, and extends to have an upper and lower width smaller than the locking part 15d-2. Both sides of the front end of the support protrusion 15d on which the passage portion 15d-3 is formed have a smaller upper and lower width than the support slot 13d.
  • the front end portion of the support protrusion 15d has a larger upper and lower width than the support slot 13d, and both front ends of the support protrusion 15d have an upper and lower width smaller than the support slot 13d. Therefore, when the operator inserts the support protrusion 15d into the support slot 13d, both ends of the front end of the support protrusion 15d pass through the support slot 13d and the optical sheets 13A, 13B, and 13C are bent. As the optical sheets 13A, 13B, and 13C are bent, the width of the center side of the support slot 13d temporarily increases, and in this state, the front center portion of the support protrusion 15d also passes through the support slot 13d.
  • the optical sheets 13A, 13B, and 13C are unfolded again, so that the lower end of the engaging portion 15d-2 is extended to the optical sheets 13A, 13B, and 13C. ) Is held adjacent to the support slot 13d.
  • the protruding portion 15d-4 extends back and forth along the sheet supporting portion 15d-1, and the front end thereof is located behind the catching portion 15d-2.
  • part in which the protrusion 15d-4 is provided in the support protrusion 15d is smaller than the up-and-down width of the support slot 13d.
  • the optical sheets 13A, 13B, and 13C are projected portions. Move upward by the thickness of 15d-4. Therefore, the area of the engaging portion 15d-2, which is adjacent to the support slot 13d of the optical sheets 13A, 13B, and 13C, increases by the thickness of the protruding portion 15d-4, and the optical sheets 13A, 13B, Departure of the support protrusion 15d from the support protrusion 15d is more surely prevented.
  • the front case 14 includes receiving portions 14c in which a part of the panel seating portion 14b is opened, as shown in FIGS. 2 and 4.
  • the accommodation portion 14c is provided at a position corresponding to the support protrusions 15d to accommodate the tip of the support protrusion 15d.
  • the front end of the support protrusion 15d is formed on the panel seating portion ( Since the upper part of the optical sheet 13A, 13B, 13C is accommodated in the accommodating part 14c provided in 14b) and is pressurized by the press part 14d of the front case 14 to the light guide plate 12a located in the back side, The detachment of the optical sheets 13A, 13B, and 13C from the support protrusion 15d is more reliably prevented.
  • the support protrusion 15d includes, but is not limited to, a passage portion 15d-3 extending downward from both front ends. That is, the support protrusion 15d may include only the locking portion 15d-2 provided at the center portion thereof.
  • the locking portion 15d-2 extends downward from the front center portion of the sheet support portion 15d-1, and the protrusion 15d-4 is formed at the center of the upper surface of the sheet support portion 15d-1, but is not limited thereto. It doesn't happen.
  • the support protrusion 15d of the middle mold 15 ′ includes a locking portion 15d-2 extending upward from the front center portion of the sheet support 15d-1. It is possible. In this case, after the front end of the support protrusion 15d passes through the support slot 13d, the optical sheets 13A, 13B, and 13C move downward by their own weight to support the slots of the optical sheets 13A, 13B, and 13C. The upper end of 13d is supported by the upper surface of the sheet support part 15d-1.
  • the support protrusion 15d protrudes from the front end of the seat supporter 15d-1 and the center of the upper surface of the seat supporter 15d-1. Including but not limited to the protrusions 15d-4.
  • the support protrusions 15d of the middle mold 15 "extend upward and downward from the front end portion of the sheet support 15d-1. It is also possible to include a pair of engaging portions 15d-2 and two pairs of passage portions 15d-3 extending upwardly and downwardly at both ends of the front end of the sheet supporter 15d-1.
  • the backlight 12 includes, but is not limited to, an edge type backlight including light guide plates 12a and light emitting diodes that supply light toward both sides thereof.
  • the backlight may be formed of a direct backlight including a plurality of light emitting diodes spaced apart from each other vertically and horizontally in front of the bottom chassis.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

La présente invention concerne un dispositif d'affichage comprenant : un panneau d'affichage ; un rétroéclairage disposé sur le côté arrière du panneau d'affichage ; une feuille optique disposée entre le panneau d'affichage et le rétroéclairage et ayant des fentes de support ; et un moule intermédiaire ayant des saillies de support servant à maintenir la feuille optique, les parties centrales des extrémités avant des saillies de support ayant une largeur verticale qui est plus grande que celles des fentes de support, les deux parties latérales des extrémités avant des saillies de support ayant une largeur verticale qui est inférieure à celle des fentes de support, et ainsi la feuille optique peut être empêchée d'être séparée des saillies de support tandis que les extrémités avant des saillies de support passent facilement à travers les fentes de support.
PCT/KR2019/007676 2018-06-27 2019-06-25 Dispositif d'affichage WO2020004913A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/255,583 US11327220B2 (en) 2018-06-27 2019-06-25 Display apparatus including a support slot and a support protrusion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0073737 2018-06-27
KR1020180073737A KR102599892B1 (ko) 2018-06-27 2018-06-27 디스플레이 장치

Publications (1)

Publication Number Publication Date
WO2020004913A1 true WO2020004913A1 (fr) 2020-01-02

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Country Link
US (1) US11327220B2 (fr)
KR (1) KR102599892B1 (fr)
WO (1) WO2020004913A1 (fr)

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
KR102629991B1 (ko) * 2019-07-08 2024-01-29 삼성전자주식회사 디스플레이 장치
KR20230068863A (ko) * 2021-11-11 2023-05-18 삼성전자주식회사 디스플레이 장치

Citations (5)

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JP2005121758A (ja) * 2003-10-15 2005-05-12 Hitachi Displays Ltd 液晶表示装置
KR20070101483A (ko) * 2006-04-11 2007-10-17 삼성전자주식회사 백라이트 어셈블리
KR20110136091A (ko) * 2010-06-14 2011-12-21 엘지이노텍 주식회사 백라이트 유닛 및 이를 포함하는 디스플레이 장치
WO2014054519A1 (fr) * 2012-10-04 2014-04-10 シャープ株式会社 Dispositif d'éclairage, dispositif d'affichage, et dispositif de réception de télévision
US20160356952A1 (en) * 2013-11-25 2016-12-08 Sakai Display Products Corporation Optical Sheet Holding Structure and Display Apparatus

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US7103259B1 (en) * 2005-03-21 2006-09-05 Hannstar Display Corporation Structure for affixing an optical plate on a frame in a panel display
KR101824603B1 (ko) * 2010-11-26 2018-02-02 엘지디스플레이 주식회사 백라이트 유닛 및 이를 구비한 액정표시장치
KR101488235B1 (ko) * 2014-01-28 2015-02-02 희성전자 주식회사 백라이트 장치의 광학시트 고정 구조
KR102511041B1 (ko) * 2015-12-31 2023-03-16 엘지디스플레이 주식회사 백라이트 유닛 및 그를 가지는 액정 표시 모듈

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005121758A (ja) * 2003-10-15 2005-05-12 Hitachi Displays Ltd 液晶表示装置
KR20070101483A (ko) * 2006-04-11 2007-10-17 삼성전자주식회사 백라이트 어셈블리
KR20110136091A (ko) * 2010-06-14 2011-12-21 엘지이노텍 주식회사 백라이트 유닛 및 이를 포함하는 디스플레이 장치
WO2014054519A1 (fr) * 2012-10-04 2014-04-10 シャープ株式会社 Dispositif d'éclairage, dispositif d'affichage, et dispositif de réception de télévision
US20160356952A1 (en) * 2013-11-25 2016-12-08 Sakai Display Products Corporation Optical Sheet Holding Structure and Display Apparatus

Also Published As

Publication number Publication date
US11327220B2 (en) 2022-05-10
US20210165158A1 (en) 2021-06-03
KR20200001150A (ko) 2020-01-06
KR102599892B1 (ko) 2023-11-08

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